"Bob Gardner" wrote in message
news

It's the old "my instructor said..." story instead of reading the book.
The Airplane Flying Handbook says, on page 8-20, "If flaps are used, it is
generally inadvisable to retract them during the after-landing roll
because the need for flap retraction is usually less important than the
need for total concentration on maintaining full control of the airplane."
Gotta wonder (1) why the flaps-up instructor doesn't go by the book, and
(2) why you swallow his story without asking for documentation for his
method.
Gotta wonder what page Bob, my copy doesn't specify under short field
landings. And a lot of inquiring minds here seem to disagree.